diff options
Diffstat (limited to 'src/extra/udp.c')
| -rw-r--r-- | src/extra/udp.c | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/src/extra/udp.c b/src/extra/udp.c index 8c44a66..99c8faa 100644 --- a/src/extra/udp.c +++ b/src/extra/udp.c @@ -37,7 +37,7 @@ * This function returns NULL if invalid UDP header is found. On success, * it returns the UDP header. */ -struct udphdr *nfq_udp_get_hdr(struct pkt_buff *pktb) +struct udphdr __EXPORTED *nfq_udp_get_hdr(struct pkt_buff *pktb) { if (pktb->transport_header == NULL) return NULL; @@ -48,14 +48,13 @@ struct udphdr *nfq_udp_get_hdr(struct pkt_buff *pktb) return (struct udphdr *)pktb->transport_header; } -EXPORT_SYMBOL(nfq_udp_get_hdr); /** * nfq_udp_get_payload - get the UDP packet payload. * \param udph: the pointer to the UDP header. * \param tail: pointer to the tail of the packet */ -void *nfq_udp_get_payload(struct udphdr *udph, struct pkt_buff *pktb) +void __EXPORTED *nfq_udp_get_payload(struct udphdr *udph, struct pkt_buff *pktb) { uint16_t len = ntohs(udph->len); @@ -69,17 +68,15 @@ void *nfq_udp_get_payload(struct udphdr *udph, struct pkt_buff *pktb) return pktb->transport_header + sizeof(struct udphdr); } -EXPORT_SYMBOL(nfq_udp_get_payload); /** * nfq_udp_get_payload_len - get the udp packet payload. * \param udp: the pointer to the udp header. */ -unsigned int nfq_udp_get_payload_len(struct udphdr *udph, struct pkt_buff *pktb) +unsigned int __EXPORTED nfq_udp_get_payload_len(struct udphdr *udph, struct pkt_buff *pktb) { return pktb->tail - pktb->transport_header; } -EXPORT_SYMBOL(nfq_udp_get_payload_len); /** * nfq_udp_set_checksum_ipv4 - computes a IPv4/TCP packet's segment @@ -91,14 +88,13 @@ EXPORT_SYMBOL(nfq_udp_get_payload_len); * \see nfq_pkt_compute_ip_checksum * \see nfq_pkt_compute_udp_checksum */ -void +void __EXPORTED nfq_udp_compute_checksum_ipv4(struct udphdr *udph, struct iphdr *iph) { /* checksum field in header needs to be zero for calculation. */ udph->check = 0; udph->check = nfq_checksum_tcpudp_ipv4(iph); } -EXPORT_SYMBOL(nfq_udp_compute_checksum_ipv4); /** * nfq_udp_set_checksum_ipv6 - computes a IPv6/TCP packet's segment @@ -110,14 +106,13 @@ EXPORT_SYMBOL(nfq_udp_compute_checksum_ipv4); * \see nfq_pkt_compute_ip_checksum * \see nfq_pkt_compute_udp_checksum */ -void +void __EXPORTED nfq_udp_compute_checksum_ipv6(struct udphdr *udph, struct ip6_hdr *ip6h) { /* checksum field in header needs to be zero for calculation. */ udph->check = 0; udph->check = nfq_checksum_tcpudp_ipv6(ip6h, udph); } -EXPORT_SYMBOL(nfq_udp_compute_checksum_ipv6); /** * nfq_tcp_mangle_ipv4 - mangle TCP/IPv4 packet buffer @@ -129,7 +124,7 @@ EXPORT_SYMBOL(nfq_udp_compute_checksum_ipv6); * * \note This function recalculates the IPv4 and TCP checksums for you. */ -int +int __EXPORTED nfq_udp_mangle_ipv4(struct pkt_buff *pkt, unsigned int match_offset, unsigned int match_len, const char *rep_buffer, unsigned int rep_len) @@ -148,7 +143,6 @@ nfq_udp_mangle_ipv4(struct pkt_buff *pkt, return 1; } -EXPORT_SYMBOL(nfq_udp_mangle_ipv4); /** * nfq_pkt_snprintf_udp_hdr - print udp header into one buffer in a humnan @@ -158,12 +152,11 @@ EXPORT_SYMBOL(nfq_udp_mangle_ipv4); * \param udp: pointer to a valid udp header. * */ -int nfq_udp_snprintf(char *buf, size_t size, const struct udphdr *udph) +int __EXPORTED nfq_udp_snprintf(char *buf, size_t size, const struct udphdr *udph) { return snprintf(buf, size, "SPT=%u DPT=%u ", htons(udph->source), htons(udph->dest)); } -EXPORT_SYMBOL(nfq_udp_snprintf); /** * @} |